/*
 * [The "BSD license"]
 *  Copyright (c) 2011 Terence Parr
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** Borrowed from Oliver Zeigermann */

package org.stringtemplate.v4.benchmark.oliver;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class Order {
    public final static BigDecimal FREE_SHIPPING_THRESHOLD = new BigDecimal("20.00");
    public final static BigDecimal SHIPPING_COSTS = new BigDecimal("3.00");
    
    private final Customer customer;
    private final Date orderDate;
    private final List<Item> items = new ArrayList<Item>();

    public Order(Customer customer, Date orderDate) {
        super();
        this.customer = customer;
        this.orderDate = orderDate;
    }

    public Customer getCustomer() {
        return customer;
    }

    public Date getOrderDate() {
        return orderDate;
    }

    public List<Item> getItems() {
        return items;
    }

    public BigDecimal getTotal() {
        return getTotalWithoutShipping().add(getShippingCost());
    }
    
    public BigDecimal getShippingCost() {
        if (isFreeShipping()) {
            return new BigDecimal("0");
        } else {
            return SHIPPING_COSTS;
        }
    }

    public BigDecimal getTotalWithoutShipping() {
        BigDecimal total = new BigDecimal(0);
        for (Item item : items) {
            BigDecimal part = item.getSubTotal();
            total = total.add(part);
        }
        return total;
    }

    // introduced for st3 and st4 as they can not compare values
    public boolean isFreeShipping() {
        return getTotalWithoutShipping().compareTo(FREE_SHIPPING_THRESHOLD) == 1;
    }
}
